会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Digital-electronic engine ignition system
    • 数字电子发动机点火系统
    • US4174688A
    • 1979-11-20
    • US853432
    • 1977-11-21
    • Guenther HonigUwe KienckeMartin Zechnall
    • Guenther HonigUwe KienckeMartin Zechnall
    • F02P3/04F02P3/045F02P5/15F02P5/04
    • F02P5/15F02P3/0456Y02T10/46
    • The engine for which the system provides ignition control produces a basic signal giving the time lapse of a predetermined angle of crankshaft rotation. Leading and trailing edges of this basic signal produce control signals. During the interval between these two a first counter stepped by clock pulses produces a count proportional to engine speed down to a certain relatively low engine speed beyond which overflow of the counter holds the counter at its maximum value. The count so determined is utilized in an ROM as the engine speed parameter which together with other engine operation parameters produce the address that selects the appropriate number to control computed ignition timing. According to the engine speed range, a second counter is loaded either with the number provided by the ROM, or with a count number based on engine speed only and the second counter then counts down past thresholds provided by a second ROM to determine both the moment of closure of the electronic switch and the moment of opening. The closure interval is generally maintained constant, consistently so at low speeds, but at high speeds a minimum open interval of the electronic switch in the primary circuit of the ignition transformer overrides this requirement. In certain embodiments ignition timing is provided by the reaching of a threshold value of current in the primary winding, under certain limited conditions.
    • 系统提供点火控制的发动机产生基本信号,给出曲轴旋转预定角度的时间流逝。 该基本信号的前沿和后沿产生控制信号。 在这两个间隔期间,由时钟脉冲串步进的第一个计数器产生与发动机转速成正比的计数,直到某个相对低的发动机转速,计数器的溢出将计数器保持在其最大值。 如此确定的计数在ROM中用作发动机速度参数,其与其它发动机操作参数一起产生选择适当数量的地址以控制计算的点火正时。 根据发动机转速范围,第二个计数器由ROM提供的数字或仅基于发动机转速的计数数字加载,然后第二个计数器倒数第二个ROM提供的阈值,以确定时刻 关闭电子开关和打开的时刻。 闭合间隔通常保持恒定,始终如此在低速下,但是在高速下,点火变压器的初级回路中的电子开关的最小开启间隔超过了这个要求。 在某些实施例中,在某些有限的条件下,通过达到初级绕组中的电流的阈值来提供点火正时。
    • 6. 发明授权
    • Automatic transmission digital control system
    • 自动变速箱数控系统
    • US4198882A
    • 1980-04-22
    • US862441
    • 1977-12-20
    • Uwe KienckeMartin Zechnall
    • Uwe KienckeMartin Zechnall
    • G05D13/00F16H61/00F16H61/02F16H61/08F16H61/12G05B15/02B60K41/18
    • F16H61/0213F16H2061/0096Y10T477/6934Y10T477/693635
    • Transmission gear change characteristic curves, relating speed and loading, are stored in a memory. The digitally stored data are processed in a data processing unit connected to a synchronization and logic unit which controls a gear change control stage, actually controlling the gear shifting. The data processing unit compares output speed of the transmission with the characteristic curves stored in the memory relating speed and loading, and optimum transmission gear range, while additionally considering load signals derived from the engine to which the transmission is connected. Preferably, the entire unit is synchronized by output pulses derived from the output speed of the transmission, with prohibited states and gear changes being provided for to prevent shifting if the actual speed exceeds or recedes below critical levels.
    • 传动齿轮变速特性曲线,相关速度和载荷,存储在一个存储器中。 数字存储的数据在连接到控制变速控制级的同步和逻辑单元的数据处理单元中进行处理,实际上控制变速。 数据处理单元将传输的输出速度与存储在存储器中的与速度和载荷相关的特性曲线以及最佳传动档位进行比较,同时另外考虑从传动装置所连接的发动机得到的载荷信号。 优选地,整个单元通过从变速器的输出速度导出的输出脉冲同步,如果实际速度超过或退回到临界水平以下,则提供禁止状态和齿轮变化以防止换档。
    • 8. 发明授权
    • Apparatus for venting a fuel tank
    • 燃油箱排气装置
    • US4683861A
    • 1987-08-04
    • US822012
    • 1986-01-24
    • Helmut BreitkreuzAlbrecht ClementDieter MayerClaus RuppmannDieter WalzErnst WildMartin Zechnall
    • Helmut BreitkreuzAlbrecht ClementDieter MayerClaus RuppmannDieter WalzErnst WildMartin Zechnall
    • B60K15/01B60K15/03F02B1/04F02D41/00F02D41/02F02D41/04F02D41/14F02D41/24F02M25/08F02M39/00
    • F02M25/08F02D41/004F02D41/1491F02D41/2451F02B1/04F02D41/2454
    • An apparatus is disclosed for venting a fuel tank of internal combustion engines or the like, wherein fuel vapors developing in the tank are received in an intermediate storage unit containing an activated carbon filter and are delivered to the induction area of the engine in dependence upon operating conditions. The delivery is accomplished by an electrically controlled tank venting valve having a pass-through opening the cross section of which is continuously changed. This is achieved by changing the pulse duty factor of the drive pulse train for this valve. The pulse duty factor may be determined in the sense of a pure control using a family of characteristic fields in dependence on rotational speed and load of the engine, or by taking into account preferably averaged Lambda values with a reduction in the cross section of the pass-through opening of the tank vent valve as the mixture becomes richer. Further, an adaptive anticipatory control is provided which enters into the calculation of the fuel quantity to be supplied or of the fuel injection signal with a correction value (ATE) and switches over to a limit control when predetermined mixture proportions are reached. The basic adaptation in the Lambda control system for calculating the fuel supply is released only if the fuel quantities originating from tank venting are negligible.
    • 公开了一种用于排放内燃机等的燃料箱的装置,其中在罐中形成的燃料蒸汽被接收在包含活性炭过滤器的中间储存单元中,并根据操作被输送到发动机的感应区域 条件。 输送通过具有贯穿开口的电控罐排放阀来完成,其横截面不断变化。 这是通过改变该阀的驱动脉冲序列的脉冲占空比来实现的。 脉冲占空因数可以在纯控制的意义上使用一系列特征场来确定,这些特征场依赖于发动机的转速和负载,或者考虑到平均的λ值,其中通过横截面的减小 通过打开罐排气阀,因为混合物变得更加丰富。 此外,提供了一种自适应预测控制,其进入计算要供应的燃料量或具有校正值(ATE)的燃料喷射信号,并且当达到预定的混合比例时切换到极限控制。 仅当来自罐排气的燃料量可忽略不计时,用于计算燃料供应的Lambda控制系统的基本适应才被释放。
    • 9. 发明授权
    • Method and apparatus for controlling the lambda value of the air/fuel
mixture supplied to an internal combustion engine
    • 用于控制提供给内燃机的空气/燃料混合物的λ值的方法和装置
    • US4932383A
    • 1990-06-12
    • US325148
    • 1989-03-17
    • Martin ZechnallAlbrecht Clement
    • Martin ZechnallAlbrecht Clement
    • F02B1/04F02D41/14
    • F02D41/148F02B1/04
    • The invention is directed to a method for controlling the lambda value of the air/fuel mixture supplied to an internal combustion engine. The method utilizes the signal of a lambda probe as the measurement of an actual value with this actual value displaying discontinuities during the transistion from the rich to the lean lambda region. The switch-over of the control direction in the direction "rich" is undertaken when the actual value in the form of the probe voltage passes through the reference voltage; however, this only happens when the probe voltage had an previously climbed to a threshold value "rich". Correspondingly, the control direction is swiched over to the direction "lean" only when the reference value is passed through and when the probe voltage previously had dropped to a threshold voltage "lean". The apparatus which operates pursusant to the method no longer leads to undefined control oscillations when cylinder scatter effects occur.
    • 本发明涉及一种用于控制提供给内燃机的空气/燃料混合物的λ值的方法。 该方法利用λ探针的信号作为实际值的测量,该实际值在从富向λ区域的转移过程中显示不连续性。 当探头电压形式的实际值通过参考电压时,进行方向“丰富”时控制方向的切换; 然而,只有当探头电压先前已经上升到阈值“rich”时才会发生。 相应地,仅当参考值通过时以及当探头电压先前已经下降到阈值电压“瘦”时,才将控制方向切换到“倾斜”方向。 当发生气缸散射效应时,对该方法进行追踪的装置不再导致未定义的控制振荡。